Orientational order of a ferroelectric liquid crystal with small layer contraction
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2010Citation:
Rafał Korlacki, Vitaly P. Panov, Atsuo Fukuda, Jagdish K. Vij, Christopher M. Spillmann, and Jawad Naciri, Orientational order of a ferroelectric liquid crystal with small layer contraction, Physical Review E, 82, 3, 2010, 7Download Item:
Orientational order of a ferroelectric liquid crystal with small layer contraction.pdf (Published (publisher's copy) - Peer Reviewed) 508.9Kb
Abstract:
We present spectroscopic and optical studies of a non-layer-shrinkage ferroelectric liquid crystal DSiKN65. The orientational order parameters S, measured with respect to the smectic layer normal using IR spectroscopy on a sample aligned homeotropically, does not exhibit any significant variation between the smectic-A? and smectic-C? phases. In contrast the birefringence of a planar homogenous sample abruptly increases at the smectic-A? to smectic-C? transition. This suggests a general increase in the orientational order, which can be described by the orientational order parameters S? defined with respect to the director. Simultaneous increase of S? and the director tilt ? may explain the low shrinkage of smectic layers, which is consistent with recent theoretical models describing the smectic-A? to smectic-C? transition for such materials.
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Science Foundation Ireland (SFI)
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http://people.tcd.ie/jvijhttp://people.tcd.ie/atsuof
http://people.tcd.ie/vpanov
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Physical Review E82
3
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